For good flavour and nutrition, a beef marrow bone is a great addition to this bone broth. Make up the rest with chicken carcasses from roasts or lamb bones, which are also good for a rich flavour.
For the stock, preheat the oven to 220C/200C Fan/Gas 7. Put the beef shin, bones, onion and ginger in a large roasting tin. Roast in the oven for 1 hour, or until the onion looks quite charred and ...